Stuffing-box.



R. S. GARRY.

STUPPING BOX.

APPLICATION IILRD 110v. 1, 1011.

Patented Feb. 4, 1913.

r s n Svi-uemtom ROBERT S. GARRY, OF SUMNER, ILLINOIS.

STUFFING-BOX.

Specification of Letters Patent.

Patented Feb. 4, 1913.

Application filed November 1,1911. Serial No. 657,918.

To all whom it may concern:

Be it'known that ROBERT S. GARRY, a citizen of the United States,residing at Sumner, in the county of Lawrence and State of Illinois,have invented certain new and useful Improvements in Stuffing-Boxes, ofwhich the following isa specification.

The stuffing box which is the subject of the'presentinvention isdesigned more particularly for use in connection with the pump rods ofoil well or water pumps, and it is the object of'the invention toprovide a simple and highly eflicient stufling box, havin means forlubricating the pump rod.

In i he accompanying drawing forming a part of this specification,Figure 1 is an elevation of the stuftin box, and Fig. 2 is averticalsection on t e line 22 of Fig. 1.

Referring specifically to the drawing, 5 denotes the well tube, and 6the rod of the pump, said rod being commonly known as the polish rod.Into the upper end of the well tube is screwed a stufiing box 7 throughwhich the rod 6 passes. The stuffing box contains a series ofpackingrings 8 which are compressed around the rod by a gland 9, thelatter being reduced at its lower end so that it may enter the stuffingbox and be ,forced down againstthe packing rings. The

upper end of the gland is enlarged and formed with a stufiing box 10through which the rod 6 also passes. This stuffing box also containspacking rings 11 which are com: pressed around the rod by a gland 12,which has outstanding side flanges 13, the extremities of which areslotted as indicated at 14;-

On the stuffing box 7 are slot-ted ears 15 to which are pivoted, asindicated at 16, clamping bolts 17 for holding the gland 12 in place.These bolts pass through theslots 14 and are provided withv nuts 18screwing down against the flanges 13, whereby the end thereof.

gland is held tightly down im the packing rings 11 and the latter arecompresse around the rod. This method of fastening the gland 12 enablesit to be quickly applied or removed, it being necessary only to loosenthe nuts 18, after which the bolts 17 can be swung sidewise to clear theslots 14, which releases the gland.

The lower end ofthe gland 9 has an enlarged bore 19 whercb a lubricantpocket is formed through whlch the rod 6 passes. It will be noted thatthis pocket is located between the packing rings 8 and'll. The pocket issupplied with lubricant through a grease cup 20; or the gland 9 may beremoved and the cket filled from the lower y providing a lubricantpocket between the two sets of packing rings, the rod is protected fromthe water, and rusting and corrosion is prevented.

I claim:

The combination of a stuffing box having slotted ears, a gland closingthe box, said gland having a lubricant pocket which opens into thestufling box, and the outer end of the gland being enlarged to form a.second stufling box, a gland for the said second stuttingbox, saidsecond-mentioned gland having outstanding flanges,'the extremities ofwhich are slotted, clamping bolts pivoted to the ears of thefirst-mentioned stuffing box and passing through the slots of theaforesaid flanges, and nuts screwed on the clamping bolts against theflanges.

In testimony whereof I atfix my signature in presence of two witnesses.

ROBERT S. GARRY.

Witnesses:

WILLIAM I. GEERY, JEROME GARRY.

